Eilenberg, Samuel; MacLane, Saunders On the groups \(H(\varPi,n)\). III. Operations and obstructions. (English) Zbl 0057.15302 Ann. Math. (2) 60, 513-557 (1954). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 3 ReviewsCited in 18 Documents Keywords:Topology × Cite Format Result Cite Review PDF Full Text: DOI